In this paper we describe a f l e x i b l e analysls-synthesls system which can be used for a number of studies In speech research. The maln objective Is to have a synthesis system whose characteristics can be controlled through a set of parameters to realize any desired voice characteristics. The basic synthesis scheme consists of two steps: Generationof an excitation signal f r o m pitch and galn contours and excitation of the linear system model described by linear prediction coefficients, W show that e a number of basic studies such as time expansion/.
